The two sides did not sign the agreement. Only when there is a legal and valid entrustment contract will it take effect. According to the Civil Code, civil subjects can carry out civil legal acts through agents. A civil juristic act carried out by an agent in the name of the principal within the scope of agency authority is effective for the principal.

Legal objectivity:

Article 490 of the Civil Code of People's Republic of China (PRC): If the parties conclude a contract in the form of a contract, the contract is concluded when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.